Grand Ole Opry members and friends Miranda Lambert, Diamond Rio, Member of Old Crow Medicine Show and Blake Shelton perform during the 40th Anniversary of The Grand Ole Opry House on March 15, 2014 in Nashville, Tennessee. (AFP)

Grand Ole Opry members and friends, Jeannie Seely, Miranda Lambert Member of Old Crow Medicine Show and Blake Shelton perform during the 40th Anniversary of The Grand Ole Opry House on March 15, 2014 in Nashville, Tennessee. (AFP)